Remote code execution via heap buffer overflow
Published Jun 10, 2025 · Updated Feb 20, 2026
Heap-based buffer overflow in Microsoft Windows RRAS allows remote attackers to execute code over a network after user interaction. Microsoft has not published the affected function, input field, or memory operation that overruns the heap buffer. Exploitation requires no privileges but does require user interaction; success executes attacker-controlled code on the target.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows RRAS allows remote attackers to execute code over a network after user interaction. Microsoft has not published the affected function, input field, or memory operation that overruns the heap buffer. Exploitation requires no privileges but does require user interaction; success executes attacker-controlled code on the target.
The record
- CVE
- CVE-2025-33066
- Published
- Jun 10, 2025
- Updated
- Feb 20, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-122, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 10, 2025CVE publishedPublication date reported by the CVE source.
- Feb 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.21034
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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